1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692a9e6aceb2b6812a9df2d7d9614433087c6f9ff4817fd11e0071d79cc9826c. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edf84e15-4957-48cd-9eba-71cc6bc6fc7d.json and https://artists.proofprofile.net/proofs/artist/edf84e15-4957-48cd-9eba-71cc6bc6fc7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Come Back to Me: Piano Arrangements of Great Film Music
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d6a0c26693a84c3d4300e3952944211268f84d1482ea47fded18ef2e43adcf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc414723c0433caa8d852ff7ad6d754d79c21c9b88be2833c4c04176f4891575b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0675abdb17b74a8b17d422edce7478077064aad849a93025f8d4e97321e90f22. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400036.
Main Theme (From "The Last of the Mohicans")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a81ffbbd33332c881a6e88fef31900cf09b9f8c084a5c63bf11d1b4a7633c67. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400038.
Honour Him - Now We Are Free (From "Gladiator")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5adc0fec06b1e5c9584de697969b79bff82851b955660155c303448460362c2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6cc72e811d284087041b05dd62dedb3cac4a9ef0f411d8f57946d6d0f593e4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400042.
For the Love of a Princess (From "Braveheart")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa0f2c11083fbc99ba8015d39134ca5aab25ca0af25106b9b651113edb65518. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:10:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400043.
In Dreams (From "Lord of the Rings, the Fellowship of the Ring")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a029b3d2d1b54d1d158dded8679dbf091184ea7fc40a2bba334e4ef2001e323. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400044.
May It Be (From "Lord of the Rings, the Fellowship of the Ring")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d9e7ccb66d87ac7107ca0ff841ad00bcf7b00df51dbd88d4fefbe53897b7f7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400045.
The Music of Goodbye (From "Out of Africa")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9905fea8f30cce046808ba6688e835384408036b74a420bd9b89c8cc1ed15adb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400037.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
The Eternal Vow (From "Crouching Tiger, Hidden Dragon")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ad0c35c1a614a5ecf6303cc7f40cd9094edb66c00be59351f6d182cf92bf12. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400039.
Main Title Theme (From "Chariots of Fire")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a67214563b7f0f7a9117331f841681d2e330324106d9aaba8f71340b1fc337d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9b008e322dabc3ec4695be55aa74fc889cf54f4a659a26782733234452a932. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400049.
Main Title (From "Once Upon a Time in the West")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884902b3d183b875ab0a9e5178880e6e02e4e628b4ef7773108e5d5ff5473b4a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMP1400052.